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# -*- encoding: utf-8 -*-
require_relative '../fixtures/classes'
describe :io_each, shared: true do
before :each do
@io = IOSpecs.io_fixture "lines.txt"
ScratchPad.record []
end
after :each do
@io.close if @io
end
describe "with no separator" do
it "yields each line to the passed block" do
@io.send(@method) { |s| ScratchPad << s }
ScratchPad.recorded.should == IOSpecs.lines
end
it "yields each line starting from the current position" do
@io.pos = 41
@io.send(@method) { |s| ScratchPad << s }
ScratchPad.recorded.should == IOSpecs.lines[2..-1]
end
it "returns self" do
@io.send(@method) { |l| l }.should equal(@io)
end
it "does not change $_" do
$_ = "test"
@io.send(@method) { |s| s }
$_.should == "test"
end
it "returns self" do
@io.send(@method) { |l| l }.should equal(@io)
end
it "raises an IOError when self is not readable" do
-> { IOSpecs.closed_io.send(@method) {} }.should raise_error(IOError)
end
it "makes line count accessible via lineno" do
@io.send(@method) { ScratchPad << @io.lineno }
ScratchPad.recorded.should == [ 1,2,3,4,5,6,7,8,9 ]
end
it "makes line count accessible via $." do
@io.send(@method) { ScratchPad << $. }
ScratchPad.recorded.should == [ 1,2,3,4,5,6,7,8,9 ]
end
describe "when no block is given" do
it "returns an Enumerator" do
enum = @io.send(@method)
enum.should be_an_instance_of(Enumerator)
enum.each { |l| ScratchPad << l }
ScratchPad.recorded.should == IOSpecs.lines
end
describe "returned Enumerator" do
describe "size" do
it "should return nil" do
@io.send(@method).size.should == nil
end
end
end
end
end
describe "with limit" do
describe "when limit is 0" do
it "raises an ArgumentError" do
# must pass block so Enumerator is evaluated and raises
-> { @io.send(@method, 0){} }.should raise_error(ArgumentError)
end
end
end
describe "when passed a String containing one space as a separator" do
it "uses the passed argument as the line separator" do
@io.send(@method, " ") { |s| ScratchPad << s }
ScratchPad.recorded.should == IOSpecs.lines_space_separator
end
it "does not change $_" do
$_ = "test"
@io.send(@method, " ") { |s| }
$_.should == "test"
end
it "tries to convert the passed separator to a String using #to_str" do
obj = mock("to_str")
obj.stub!(:to_str).and_return(" ")
@io.send(@method, obj) { |l| ScratchPad << l }
ScratchPad.recorded.should == IOSpecs.lines_space_separator
end
end
describe "when passed nil as a separator" do
it "yields self's content starting from the current position when the passed separator is nil" do
@io.pos = 100
@io.send(@method, nil) { |s| ScratchPad << s }
ScratchPad.recorded.should == ["qui a linha cinco.\nHere is line six.\n"]
end
end
describe "when passed an empty String as a separator" do
it "yields each paragraph" do
@io.send(@method, "") { |s| ScratchPad << s }
ScratchPad.recorded.should == IOSpecs.paragraphs
end
end
describe "with both separator and limit" do
describe "when no block is given" do
it "returns an Enumerator" do
enum = @io.send(@method, nil, 1024)
enum.should be_an_instance_of(Enumerator)
enum.each { |l| ScratchPad << l }
ScratchPad.recorded.should == [IOSpecs.lines.join]
end
describe "returned Enumerator" do
describe "size" do
it "should return nil" do
@io.send(@method, nil, 1024).size.should == nil
end
end
end
end
describe "when a block is given" do
it "accepts an empty block" do
@io.send(@method, nil, 1024) {}.should equal(@io)
end
describe "when passed nil as a separator" do
it "yields self's content starting from the current position when the passed separator is nil" do
@io.pos = 100
@io.send(@method, nil, 1024) { |s| ScratchPad << s }
ScratchPad.recorded.should == ["qui a linha cinco.\nHere is line six.\n"]
end
end
describe "when passed an empty String as a separator" do
it "yields each paragraph" do
@io.send(@method, "", 1024) { |s| ScratchPad << s }
ScratchPad.recorded.should == IOSpecs.paragraphs
end
end
end
end
describe "when passed chomp" do
it "yields each line without trailing newline characters to the passed block" do
@io.send(@method, chomp: true) { |s| ScratchPad << s }
ScratchPad.recorded.should == IOSpecs.lines_without_newline_characters
end
ruby_version_is "3.0" do
it "raises exception when options passed as Hash" do
-> {
@io.send(@method, { chomp: true }) { |s| }
}.should raise_error(TypeError)
-> {
@io.send(@method, "\n", 1, { chomp: true }) { |s| }
}.should raise_error(ArgumentError, "wrong number of arguments (given 3, expected 0..2)")
end
end
end
describe "when passed chomp and a separator" do
it "yields each line without separator to the passed block" do
@io.send(@method, " ", chomp: true) { |s| ScratchPad << s }
ScratchPad.recorded.should == IOSpecs.lines_space_separator_without_trailing_spaces
end
end
describe "when passed chomp and empty line as a separator" do
it "yields each paragraph without trailing new line characters" do
@io.send(@method, "", 1024, chomp: true) { |s| ScratchPad << s }
ScratchPad.recorded.should == IOSpecs.paragraphs_without_trailing_new_line_characters
end
end
describe "when passed chomp and nil as a separator" do
ruby_version_is "3.2" do
it "yields self's content" do
@io.pos = 100
@io.send(@method, nil, chomp: true) { |s| ScratchPad << s }
ScratchPad.recorded.should == ["qui a linha cinco.\nHere is line six.\n"]
end
end
ruby_version_is ""..."3.2" do
it "yields self's content without trailing new line character" do
@io.pos = 100
@io.send(@method, nil, chomp: true) { |s| ScratchPad << s }
ScratchPad.recorded.should == ["qui a linha cinco.\nHere is line six."]
end
end
end
describe "when passed chomp, nil as a separator, and a limit" do
it "yields each line of limit size without truncating trailing new line character" do
# 43 - is a size of the 1st paragraph in the file
@io.send(@method, nil, 43, chomp: true) { |s| ScratchPad << s }
ScratchPad.recorded.should == [
"Voici la ligne une.\nQui è la linea due.\n\n\n",
"Aquí está la línea tres.\n" + "Hier ist Zeile ",
"vier.\n\nEstá aqui a linha cinco.\nHere is li",
"ne six.\n"
]
end
end
end
describe :io_each_default_separator, shared: true do
before :each do
@io = IOSpecs.io_fixture "lines.txt"
ScratchPad.record []
suppress_warning {@sep, $/ = $/, " "}
end
after :each do
@io.close if @io
suppress_warning {$/ = @sep}
end
it "uses $/ as the default line separator" do
@io.send(@method) { |s| ScratchPad << s }
ScratchPad.recorded.should == IOSpecs.lines_space_separator
end
end
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